Grinding-mill.



,PATBNTED AUG. 7,1906. 1

J. H. REEGE; GRINDING MILL.

APPLIOATION mum A23. 16, 1904,

2 SHEETS-SHEET 1.

No. 827,883. PATENTED AUG. 7, 1906. J. H. REESE GRINDING MILL.

APPLICATION FILED APR. 18, 1904.

2 SHEETS-SHEET 2.

mmammz R 3 5 ter post B is inserted into the central .IINITED STATES PATENT OFFICE,

JUAN'H. REECE, or JOLIETQILLINOIS,,ASSIGNOR TO HORACE FRED HUMPHREY AND .HARRY B, HUMPHREY, ooPARrNERS, DOING, BUSINESS UNDER THE FIRM NAME or HUMPHREY & SONS, OF

JOLIET, ILLINOIS.

GRINDING-MILL.

Specification of Letters Patent.

' Patented Aug. 7, 1906.

Application filed April 18; 1904. Serial No 203,711.

To all whom it may concern.-

Be it known that I, JUAN H. REEcE, a citizen of the United States, residing at J oliet, in the county of Will and State of Illinois, have invented certain new and useful Improvements in Grinding-Mills, of which the following is a specification.

This invention relates to grinding-mills, and refers particularly to the improvements in such mills herein shown and described.

In the accompanying drawings,Figure 1 is a vertical central section through a grindingmill embodying the features of this invention. Fig. 1 is a perspective view of the center post and the clamping-collar thereon, the adjusting means in said center post being shown in dotted lines. Fig. 2 isatop plan view of the pinion-carrying ring with sweep attached, and Fig. 3 is a similar view of the base or supporting-spider. In the construction of a grinding-mill embodying my invention I provide a support ing-spider A, comprising four arms A to the under sideof each of which arms .near its outer end is secured a leg A by means of a bolt A The outer extremities of the arms A are provided With elongated openings A for receiving pivot-bolts A upon which bolts and above said arms are rotatably supported four bearing-rollers A. At its center the spider is provided with an opening A, having rectangular pockets A in its peripheral walls. Intermediate the center of the spider and the outer ends of the arms A a lower gear-ring A is formed, preferably integral with the spider A. Upon the under side of the spider A is cast a lug A? for a purpose to appear hereinafter. r

A center post B extends through the opening A of the spider and is secured therein by means of the lugs B and B formed integral with said center post and corresponding in number and location with the rectangular pockets A in the opening A. The cening A and rotated slightly relative to said spider until one of the lugs B comes in contact with the lug A on the spider, thusholding the .post B from further rotation. The upper portion of the post B is of a diameter somewhat smaller than the lower portion and at its upper end is provided with the screw-threads B The upper part of the -bre aker-fingers E lower portion of the post is squared, as at B and is provided with a transverse opening B The post B is hollow and open at both ends. A cross-bar B lies within the opening B in the post B and is adapted to have a slight vertical movement in said opening. This cross-bar is rovided with a vertical opening B and wit a transversely-extending rectangular pocket B B indicates grooves cut in the opposite sides of the post B to receive keys for preventing rotation of the breakerhead mentioned hereinafter. e

An innerreducing-ring C of conical form has a center hub (1, provided with an opening C corresponding in size and form with the squared portion B of the center post B. The hub C is adapted to rest upon the upper edge of the supporting-key B Upon the outer face of the ring O a series of reducingribs C is formed, which ribs are integral with said ring.

An inner grinding-ring D is secured to the lower edge of the reducing-ring C by means of bolts D, passing through suitable openings in said grinding-ring and the flanges of said reducing-ring.

An outer reducing-ring E is rotatably mounted, by me ans of its integral hub E up on I the upper cylindrical portion of the center post B, thering E being connected to its hub E by means of arms E Upon its interior sides the ring E is provided with reducing ribs E corresponding with the similar ribs C of the reducing-ring C. Upon the upper side of the arms E are upwardly-extending ripheral flange E to which by means of the The ring E has a pe-.

bolts E a hopper E is secured. The lower edge of-the outer reducing-ring E is provided with an outwardly-extending annular flange E upon the outer periphery of which'is fixed an upper gear-ring E of substantially the same diameter and corresponding in position with the lower gear-ring A".

An outer grinding-ring F, corresponding in foim with the inner grinding-ring D, is secured to the under side of the periphery of the ring E by means of bolts F, passing through suitable openings in the ears F A breaker-head comprising the hub G and the radiating arms G is mounted upon the center post B and held from rotation byv means of keys g, lying within the grooves B ring and secured rigidly thereto; and a nonrotatable grinding member coacting with said first-mentioned grinding member.

' 5. In a grinding-mill, in combination, a supporting-frame comprising a spider, said spider having a central opening therein; a lower gear-ring formed integral with said spider; a center post having lugs thereon adapted to support said post in the central opening of the spider; a pinion adapted to mesh with said lower gear-ring; a grinding member having a gear connection with said pinion; said center post extending through and forming the rotative center of said grinding member; and a non-rotatable grinding member coacting with said first-mentioned grinding member.

6. In a grinding-mill, in combination, a supporting-frame comprising a spider, said frame having a central opening therein; a lower gear-ring fixed with relation to said frame; a center post having means thereon for supporting said post in the central opening of the frame, said center post having a square portion; a pinion adapted to mesh with said lower gear-ring; an outer grinding member having a gear connection with said pinion; said center post extending through and forming the rotative center of said grinding member and an inner non-rotatable grinding member adjustably supported upon the square portion of said center post.

In a grinding-mill, in combination, a supporting-frame comprising a center post and a lower gear-ring; an inner reducing-ring non-rotatably mounted on said center post; an inner grinding-ring secured to said inner reducing-ring; an outer reducing-ring, said center post extending through and forming the rotative center of said reducing-ring; an outer grinding-ring secured to said outer reducing-ring; an upper gear-ring secured to said outer grinding-ring; a bull-wheel having pinions adapted to mesh with said gear-rings means for moving the inner reducing-ring and inner grinding-ring toward or away from the outer reducing-ring and outer grindingring; a non-rotatable breaker-head; and a ball-bearing between said breaker-head and said outer reducing-ring.

8. In a grinding-mill, in combination, a supporting-frame; a lower gear-ring formed integral therewith; a bull-wheel having openings therein; and a track upon its periphery; a shaft supported at its ends in-the opposite side walls of each of said openings; a pinion rotatably supported on each of said shafts an'd'adapted to mesh with said gear-ring; idler-rollers mounted on frame to rotate in a horizontal plane and adapted to roll in contact with the peripheral track of said bull-wheel to hold said bullwheel central of said lower gear-ring; an upper gear-ring supported by said pinions; a grinding member carried by said upper gearring and secured rigidly thereto; and a nonrotatable grinding member coacting with said first-mentioned grinding member.

9. In a grinding-mill, in combination, a supporting-frame comprising a hollow center post having a square portion and a transverse opening therein; a cross-bar in said transverse opening; a non-rotatable grinding member supported by said cross-bar upon said square portion of said post; a second grinding member rotatably mounted upon said center post; a non-rotatable breakerhead having a screw-thread connection with said center post; and a ball-bearing between said breaker-head and said second grinding member.

JUAN H. REEOE. Witnesses:

H. FRED HUMPHREY, HARRY B. HUMPHREY.

said supporting- 

